Permutation-lock



(No Model.)

W. S. HILL.

PBRMUTATION 1.00K.

B Eigrll 1,

Z .B L Q3 G v l O Patent-ed June 24, 1884..

wwe

N. vnsns. Phomumagmpmr. wasnmgnm ne.

Nirn STATES ATENr rrrcn.

WILLIAM S.4 HILL, OF CUTLER, ILLINOIS.

PERMUvTATION-LOCK.

SPECIFICATION forming part of Letters Patent No. 300,868, dated June 24, 1884.

Application filed January 28, 1884. (No model.)

To all. whom, it may concern.'

Be it known that I, VILLIAM S. HILL, of Cutler, in the county of Perry and State of Illinois, have invented a certain new and useful Improvement in Locks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, and in which- Figure l is a side View of the lock, showing part of a door in vertical section. Fig. 2 is a top view of the lock, showing part of a door in horizontal section. Figs. 3 and 4 are vertical sections taken on line 3 4, Fig. 2, and showing the parts in different positions. Fig. 5 is a section taken on line 5 5, Fig. 3, and Fig. 6 is a section taken on line 6 6, Fig. 4. Fig. 7 is a perspective View showing one side of one of the locking-disks, and Fig. Sis a similar view showing the other side. Fig. 9 illustrates a door-fastening in connection with which my lock is designed to be used.

My invention relates to a lock intended to be used in connection with the door-fastening patented by myself September l1, 1883, No. 284,961; and it consists in features of novelty hereinafter fully described, and pointed out in the claims.

Referring "to the drawingsA A represent doors, and B B represent, respectively, the rack or bar and the pinion that engages the rack of my door-fastening above referred to. The pinion is made fast to the end of a shaft or spindle, C, supported by a plate, D, secured to the door and held from moving endwise, as shown in Figs. 3 and 4. On the inner portion of the spindle are loose disks G, with short hubs G to hold them apart. Secured to or formed uponone side of these disks are lugs or projections G2, and upon the other side are pins G3, removably secured in holes G4.

' Each disk has one lug and one pin, as shown in Fig. 8, and the pin may be put in any one of the holes G4 to change the combination of the lock. The disk nearest the pinion, however, is not provided with a pin, as there is no disk for it to engage with. Surrounding the spindle is also a spiral spring, H, which tends to force the disk outward upon the spindle.

also a sleeve, J, which has a fiange, J, upon its inner end and a knob, J2, upon its outer end. Like the disks, the flange J is also provided with a pin, G, which, when the knob is turned, comes in contact with the lug on the adjacent disk. The spring H also acts to force the sleeve outward, as well as the disks, (see Fig. 3,) when it is not pressed' inward, as shown in Fig. 4, and the outer or free end of the spring I is bent downward, so that it will be allowed to spring up when the sleeve is in its outer position and be forced downward when the sleeve is pressed in. I prefer to have a LJ-piece inclose the disks, as shown,

which is connected to the plate D.

The operation is as follows: Supposing the combination to be set as shown in Fig. 3, the knob is then turned, which turns the spindle and pinion thereon until the rack B is brought into the position shown in Fig. 9, and the doors thus fastened. 'Ihen the combination is broken, so that a person unacquainted with it will not be able to unfasten the doors by forcing the parts inward into the position shown in Fig. 4, and then turning the knob a little, so that when the spring II forces the disks and spindle into their outer position again part or all of the notches'G5 of the disks will not be opposite or over the spring I, which will thus be held from engaging with the disk, so that turning the knob will not unfasten the doors. IVhen the doors are to be unfastened, the combination is set, by a person acquainted with it, which connects the knob J and pinion B through means of the disks G and spring I.4

I claim as my inventionl. The combination of a rack-bar, a spindle having a pinion to advance and retract the rack-bar, interlocking disks onsaid spindle, a sleeve having a flange provided with a pin to engage the adjacent disk, and a spring-plate to lock the disks to the spindle when the combination is set, as set forth.

IOO

2. The combination of the spindle having a spring out of engagement with the disks, and longitudinal recess, a flat spring to occupy the a spring to force both the disks and sleeve outrecess, and a pinion to engage a rack-bar, inward when the latter are released.

terlooking disks, each having a notch to re- WILLIAM S. HILL. 5 oeve the dat spring when the latter is free, a In presence 0f.-

sleeve to lock with the adjacent disk, and to CHARLES RoBBINs,

slide inward with the disks and press the flat A. T. MOCLURE. 

